title: Awareness of over-the-counter drug use by elderly patients. A hospital-based questionnaire survey.
mesh_terms: D000368:Aged; D001364:Awareness; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D004366:Nonprescription Drugs / Q000009:adverse effects*; D012651:Self Medication; D011795:Surveys and Questionnaires
chemical_list: D004366:Nonprescription Drugs